Adjustable stay.



T. G. CLARK.

ADJUSTABLE STAY.

APPLICATION FILED MAR. 29, 1913.

1,1 %2,U'?5m Patented Dec. 22, 1914.

THOMAS GEORGE CLARK, OF CHELSEA, LONDON, ENGLAND.

ADJUSTABLE STAY.

To all whom it may concern:

Be it known that I, THOMAS Gnoner: CLARK, a citizen of the United Kingdom of Great Britain and Ireland, residing at 5 Anderson street, Chelsea, London, England, have invented a new and Stay, of which the following is a specification.

My invention relates to improvements in adjustable stays in which the movements of the stays are guided and controlled and the stays easily set in the positions required. j

The objects of my improvements are: First, to provide a simple hinging for the stays. Second, to enable the stays to be easily fastened in required positions. Third, to automatically control and limit the action of the stays. Fourth, a stay that fixed on such an instrument as a double-bellows vacuum carpet cleaner, enables the machine to be opened out for use and the bellows to act inconjunction or enables it to be closed up when not in use and so maintained, the opirator being easily able to set the stay for eit objects by the mechanism illustrated in the accompanying drawings in which Figure 1 is ..a top view of one form. Fig. 2 is a top view of another form. Fig. 3 is a perspective view of Fig. 2. Fig. 4 is a side view of a vacuum carpet cleaner with the stay attached. Fig. 5 is a front view of Fig. 4

A is a metal rod of circular section having a male screw thread tapped on each end. This rod is bent to form two stays or struts joined together by a cross-piece thus forming a double-stay. The screwed ends are entered into metal plates B, BB being detached to show the screw. Part of each plate is turned over to form a knuckle like the half of a hinge. The inside of this knuckle is tapped with a female thread to Specification of Letters Patent.

useful Adjustable er purpose with one hand. I attain these flexible thong Patented Dec. 22, 1914.

' Application filed March 29, 1913. Serial No. 757,649.

correspond with the male thread on the end of the stay and into this knuckle the end of the stay is entered, thus limiting the lateral movement of the stay while permitting a free hinge action. A pierced casting may be used instead of abent over plate. The other ends of the struts may be projected and bent to form shoulders which abut the guides C, G, thus again limiting the lateral movement of the stays. The part of the rod connecting the two struts and called the crosspiece is confined by passing through two guides C, CC being separated from the struts to show its shape while C shows the section midway. These guides are fixed to one movable side .of the instrument as in Figs. 4 and 5 and are of such length as is found necessary for correct adjustment. The stays can only move to and fro within the length of the guides. To the crosspiece is secured, but not rigidly, a thong D of leather or other suitable flexible material pierced with a button-bole by which it can I pass tightly over either stud E or stud E as shown in Figs. 4 and 5 so fixed as respectively to keep the instrument open or closed.

am aware that prior to my invention there have been several forms of stays which are adjustable, I therefore do not claim such a combination broadly, but

I claim The combination of a stay, a pair of hinges, knuckles on said hinges having screw threads, guiding means for directing and limiting the movement of the stay, a having an eye carried by the stay, and studs for engaging the eye of said thong at opposite ends of the guiding means substantially as described.

THOMAS GEORGE CLARK.

Copies oi this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

